[PATCH v2 3/3] perf test: Add basic perf record tests

Ian Rogers
2022-04-14T01:46:58Z

Test the --per-thread flag.
Test Intel machine state capturing.

Suggested-by: Namhyung Kim <namhyung@kernel.org>
Signed-off-by: Ian Rogers <irogers@google.com>
---
tools/perf/tests/shell/record.sh | 42 ++++++++++++++++++++++++++++++++
1 file changed, 42 insertions(+)
create mode 100755 tools/perf/tests/shell/record.sh

diff --git a/tools/perf/tests/shell/record.sh b/tools/perf/tests/shell/record.sh
new file mode 100755
index 000000000000..cd1cf14259b8
--- /dev/null
+++ b/tools/perf/tests/shell/record.sh
@@ -0,0 +1,42 @@
+#!/bin/sh
+# perf record tests
+# SPDX-License-Identifier: GPL-2.0
+
+set -e
+
+err=0
+test_per_thread() {
+ echo "Basic --per-thread mode test"
+ perf record -e instructions:u --per-thread -o- true 2> /dev/null \
+ | perf report -i- -q \
+ | egrep -q true
+ echo "Basic --per-thread mode test [Success]"
+}
+
+test_register_capture() {
+ echo "Register capture test"
+ if ! perf list | egrep -q 'br_inst_retired.near_call'
+ then
+ echo "Register capture test [Skipped missing instruction]"
+ return
+ fi
+ if ! perf record --intr-regs=\? 2>&1 | egrep -q 'available registers: AX BX CX DX SI DI BP SP IP FLAGS CS SS R8 R9 R10 R11 R12 R13 R14 R15'
+ then
+ echo "Register capture test [Skipped missing registers]"
+ return
+ fi
+ if ! perf record -o - --intr-regs=di,r8,dx,cx -e cpu/br_inst_retired.near_call/p \
+ -c 1000 --per-thread true 2> /dev/null \
+ | perf script -F ip,sym,iregs -i - 2> /dev/null \
+ | egrep -q "DI:"
+ then
+ echo "Register capture test [Failed missing output]"
+ err=1
+ return
+ fi
+ echo "Register capture test [Success]"
+}
+
+test_per_thread
+test_register_capture
+exit $err
--
2.36.0.rc0.470.gd361397f0d-goog